Adaptor for a differential



FIG. 1 is a front elevational view of an adaptor for a differential showing my new design, the rear being a mirror image thereof;

FIG. 2 is a top plan view on an enlarged scale;

FIG. 3 is a left side elevational view on an enlarged scale;

FIG. 4 is a right side elevational view on an enlarged scale; and,

FIG. 5 is a bottom plan view thereof on an enlarged scale. 

The ornamental design for an adaptor for a differential, as shown and described. 